Super Duplex

Super duplex stainless steel belongs to a distinct category within the duplex steel family, characterised by its composition of chromium, molybdenum, and nickel alloys. This unique alloy exhibits a dual nature, combining the strengths of ferritic and austenitic steel while offering corrosion resistance. The three primary duplex groups are the standard duplex, super duplex, and lean duplex. Super duplex stands out for its superior pitting corrosion resistance, with grades ranging from EN1.4410 to hyper duplex variants with PREN numbers exceeding 45. The PREN number signifies composition percentages and corrosion resistance. Prices for super duplex steel vary among suppliers, and we provide a competitive price list for our products. Various applications in the oil and gas, chemical, marine, and desalination industries leverage different grades, with nitrogen addition enhancing corrosion resistance. Although tungsten may be used for intermetallic phases, higher quantities can impact material processing. Despite challenges, the exceptional properties of super duplex make it suitable for diverse applications, including piping systems in desalination plants, fuel systems, and the chemical and food processing industries. Super duplex steel suppliers offer sheets, plates, pipes, fittings, and accessories tailored to customer needs.